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(11) | EP 0 452 283 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Coded-fringe interferometric method and device for wavefront detection in optics |
(57) For the detection of the wavefront of a beam, based on a Mach-Zehnder interferometric
configuration, synchronous detection - which replaces a temporal scan or a spatial
dimension of the array of sensors - is obtained by means of frequency coding of the
fringes present in the function I(x,y). |